MA1200LBU1A2018 van snyder & 1 6/30/18 3:03 PM Quiz: Unit 4: Quiz ubmt 13 of 17

Question

MA1200LBU1A2018 van snyder & 1 6/30/18 3:03 PM Quiz: Unit 4: Quiz ubmt 13 of 17 (12 compete Polistors are concemed about declieing levels of cooperation among persons contacted in surveys A polleter contacts 84 people in the 18-21 age bracket and inds hat 71 of thom respond and 13 reluse to respond. When 258 people in the 22-29 age bracket are contacted, 210 respord and 48 refuse to sespond Suppose that oneG of the 342 people is randomly selected. Find the probatbility of geting someone in the 18-21 age bracket or somsone who responded Pperson ts in the 18-21 age bracket or responded) (Do not round unts the inal answer. Then round to three decimal places as needed) Enter your answer in the answer box ip

Explanation / Answer

P(person is in the 18-21 age bracket or responded)=(71+13+210)/342=0.860

age respond refused total 18-21 71 13 84 22-29 210 48 258 total 281 61 342

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